Copper smelting
[建] 炼铜
🧩 词语组成解析
copper
['kɑpɚ]
n. 铜;铜币;紫铜色;警察;
adj. 铜制的;
vt. 镀铜;
smelting
['smeltiŋ]
n. 熔炼;
v. 熔炼，提炼（矿石）( smelt的现在分词 );
🗣️ 情景例句
I can't answer that one.
我回答不出那个问题。
That's a good idea.
那是一个好主意。
She has been helping her husband for thirty years now.
她已经帮了她的丈夫30年了。